Created
January 4, 2022 18:19
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| // Defaults: | |
| // Bw = 125 kHz | |
| // Cr = 4/5 | |
| // Sf = 128chips/symbol | |
| // CRC on | |
| RH_RF95::ModemConfig modem = {0x72, 0x74, 0x00}; | |
| void setBandwidth(uint32_t bw) { | |
| uint8_t index; | |
| uint32_t bandwidths[] = { | |
| 7800, | |
| 10400, | |
| 15600, | |
| 20800, | |
| 31250, | |
| 41700, | |
| 62500, | |
| 125000, | |
| 250000, | |
| 500000 | |
| }; | |
| for (index = 0x00; index < 9; index++) { | |
| if (bw <= bandwidths[index]) { | |
| break; | |
| } | |
| } | |
| modem.reg_1d = (modem.reg_1d & 0x0f) | (index << 4); | |
| } | |
| void setSpreadingFactor(uint8_t sf) { | |
| if (sf < 6 || sf > 12) { | |
| return; | |
| } | |
| modem.reg_1e = (modem.reg_1e & 0x0f) | (sf << 4); | |
| } |
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